Blood Components

Question 1

What are the 3 functions of blood?

Answer 1

Distribution (oxygen, nutrients, CO2, water)
Regulation (body temp, pH, fluid volume)
Protection (against haemorrhage and infection)

Question 2

What % of body mass is blood?

Answer 2

5 litres

Question 3

What are the formed components of the blood?

Answer 3

Erythrocytes = red blood cells 
Leukocytes = white blood cells 
Thrombocytes = platelets

Question 4

What are the components of blood plasma?

Answer 4

Proteins
Water
Other solutes

Question 5

What proteins are in the blood plasma?

Answer 5

Albumins
Globulins
Fibrinogen

Question 6

What are the main solutes in the plasma?

Answer 6

Electrolytes 
Nutrients 
Gases 
Regulatory substances 
Vitamins
Waste products

Question 7

What are the formed elements of the blood?

Answer 7

Platelets
White blood cells
Red blood cells

Question 8

What are the 5 types of white blood cell?

Answer 8

Neutrophils 
Lymphocytes
Monocytes 
Eosinophils
Basophils

Question 9

What is the name of the process of blood cells?

Answer 9

Haemopoiesis

Question 10

Describe the process haemopoiesis to form lymphocytes

Answer 10

Pluripotent stem cells specialise to lymphoid stem cells the lymphocytes (B and T cells)

Question 11

Pluripotent stem cells specialise into myeloid stem cells which can then specialise into what 5 blood components?

Answer 11

nutrophils
monocytes
eosinophils
basophils
platelets

Question 12

How long do red blood cells last?

Answer 12

120 days

Question 13

What is the purpose of haemostatis?

Answer 13

To stop bleeding

Question 14

Describe the 3 step process of of haemostatis

Answer 14

1. Vascular spasm to seal the hole
2. Platelet plug
3. Blood clot formation